From 4e24bd4f5d0503deb1b1ced766d9ad75daea8c35 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E6=80=9D=E6=B5=B7?= <1464576565@qq.com>
Date: Tue, 16 Dec 2025 14:00:30 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9?=
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---
 Runtime/Input/InputDeviceWatcher.cs | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/Runtime/Input/InputDeviceWatcher.cs b/Runtime/Input/InputDeviceWatcher.cs
index d2a3ed5..e0f7db1 100644
--- a/Runtime/Input/InputDeviceWatcher.cs
+++ b/Runtime/Input/InputDeviceWatcher.cs
@@ -24,6 +24,7 @@ public static class InputDeviceWatcher
     private static int _lastDeviceId = -1;
     private static float _lastInputTime = -Mathf.Infinity;
 
+    private static InputDeviceCategory _lastEmittedCategory = InputDeviceCategory.Keyboard;
 
     public static event Action<InputDeviceCategory> OnDeviceChanged;
 
@@ -37,6 +38,7 @@ public static class InputDeviceWatcher
 
         CurrentCategory = InputDeviceCategory.Keyboard;
         CurrentDeviceName = "";
+        _lastEmittedCategory = CurrentCategory; // 初始化同步
 
         _anyInputAction = new InputAction("AnyDevice", InputActionType.PassThrough);
         _anyInputAction.AddBinding("<Keyboard>/anyKey");
@@ -77,6 +79,8 @@ public static class InputDeviceWatcher
 
         OnDeviceChanged = null;
         initialized = false;
+        
+        _lastEmittedCategory = InputDeviceCategory.Keyboard;
     }
 
     private static void OnAnyInputPerformed(InputAction.CallbackContext ctx)
@@ -96,7 +100,7 @@ public static class InputDeviceWatcher
         CurrentCategory = DetermineCategoryFromDevice(device);
         CurrentDeviceName = device.displayName ?? $"Device_{curId}";
 
-        EmitChangeLog();
+        EmitChange();
     }
 
     // ------------------ 监听设备变更 --------------------
@@ -110,7 +114,7 @@ public static class InputDeviceWatcher
                 _lastInputTime = -Mathf.Infinity;
                 CurrentDeviceName = "";
                 CurrentCategory = InputDeviceCategory.Keyboard;
-                EmitChangeLog();
+                EmitChange();
             }
         }
     }
@@ -183,8 +187,13 @@ public static class InputDeviceWatcher
     }
 
     // ------------------ 输出 --------------------
-    private static void EmitChangeLog()
+    private static void EmitChange()
     {
+        if (CurrentCategory == _lastEmittedCategory)
+        {
+            return;
+        }
+
         int vid = GetVendorId();
         int pid = GetProductId();
 
@@ -192,7 +201,9 @@ public static class InputDeviceWatcher
         Debug.Log($"输入设备变更 -> {CurrentCategory} 触发设备: {CurrentDeviceName} vid=0x{vid:X} pid=0x{pid:X}");
 #endif
 
+        // 触发事件并记录已发射的分类
         OnDeviceChanged?.Invoke(CurrentCategory);
+        _lastEmittedCategory = CurrentCategory;
     }
 
     private static int GetVendorId()